Check whether your phone already has Google Play Store installed
Open the app drawer and search for Play Store
If it is missing, check whether your phone supports Google Mobile Services
Connect your phone to the internet
Open the official app store or browser on your device
Download the Google Play Store APK only from a trusted source
Download the required Google Play Services APK if needed
Enable Install unknown apps in your phone settings
Open the downloaded APK file and install it
Install Google Play Services and Google Services Framework if required
Restart your phone
Open Play Store and sign in with your Google account
Update Play Store and Google Play Services if prompted
If your phone does not support Google services, install a compatible app store instead